Pembrolizumab-Induced Adrenal Insufficiency: Recognizing and Managing a Diagnostic Challenge in Adjuvant NSCLC Therapy

Summary: Immunotherapy drugs like pembrolizumab are amazing at fighting cancer, but they can sometimes work a little too well. By taking the brakes off the immune system, these drugs can accidentally attack healthy parts of the body, like the glands that make our important hormones.

A recent medical report looked at a 67-year-old woman who was being treated for lung cancer. After a few months of treatment, she suddenly felt incredibly tired, weak, and nauseous. It turned out her immunotherapy had caused "central adrenal insufficiency." Basically, her brain stopped telling her adrenal glands to make cortisol, a vital hormone we need to survive.

Because symptoms like extreme tiredness and nausea are so common in cancer patients, this dangerous side effect is very easy to miss. Doctors had to stop her cancer drug and start her on daily steroid pills to replace the missing cortisol. She will likely need to take these pills for life and even has to carry an emergency injection kit!

The big takeaway? If you or a loved one are on immunotherapy and feel unusually exhausted, don't just brush it off as normal "cancer fatigue." It could be a hormone problem that just needs a simple blood test to catch.

Source: Pharmacy Times URL: pharmacytimes.com/view/pembrolizumab-induced-adrenal-insufficiency-recognizing-and-managing-a-diagnostic-challenge-in-adjuvant-nsclc-therapy (opens in new tab)